The Yanmar YM140 tractor is listed with a 20.5×8-10 front tire and a 29×12.00-15 rear tire.
Yanmar YM140 Tire Size Chart
Configuration
Tire size
Lawn/turf front
20.5×8-10
Lawn/turf rear
29×12.00-15
Recommended tire pressure
For the Yanmar YM140; the recommended tire pressure is typically around 20-25 psi for the rear tires and 14-18 psi for the front tires; depending on the load and conditions. Always check the tire sidewall for the maximum pressure rating.
Before buying replacement tires
Match the complete sidewall size, rim diameter, axle position, 2WD/4WD configuration and tire type before ordering. On driven front axles, changing overall tire diameter can upset the required front-to-rear rolling ratio.
Tire Pressure
Recommended tire pressure: For the Yanmar YM140; the recommended tire pressure is typically around 20-25 psi for the rear tires and 14-18 psi for the front tires; depending on the load and conditions. Always check the tire sidewall for the maximum pressure rating.
Pressure warning: Confirm the correct pressure in the official operator’s manual and the tire manufacturer’s load-and-pressure chart before inflation.
Wheelbase and Ground Clearance
Wheelbase
53 inches 134 cm
Ground clearance
7.6 inches 19 cm
Specification disclaimer
These specifications are provided as a reference and may vary by production year, country, axle, wheel package and previous tire changes. Before purchasing, fitting or inflating tires, confirm the specifications using the Yanmar official U.S. website, the official operator’s manual and the markings on the tires currently fitted.
